code: def test_nonfloats_cpu(self):
      self._test_face_areas_normals_helper("cpu", dtype=torch.double)
  
file_path: pytorch3d/tests/test_face_areas_normals.py
imports: import unittest
  import torch
  from pytorch3d.ops import mesh_face_areas_normals
  from pytorch3d.structures.meshes import Meshes
  from .common_testing import get_random_cuda_device, TestCaseMixin
label_desc: Use image node_id 7 for calling the TestFaceAreasNormals obj's underlying member method code with example usage: obj.test_nonfloats_cpu() without return types